1.5.9

Human Activities & Carbon Dioxide

Test yourself

Human Activities and Carbon Dioxide

Certain human activities cause the atmospheric concentrations of carbon dioxide to increase:

Illustrative background for Burning fossil fuelsIllustrative background for Burning fossil fuels ?? "content

Burning fossil fuels

  • Burning fossil fuels releases carbon, in the form of carbon dioxide. This carbon dioxide had been stored away for millions of years previously.
Illustrative background for DeforestationIllustrative background for Deforestation ?? "content

Deforestation

  • As we cut down more and more trees, the global rate of photosynthesis will decrease.
  • Given that carbon dioxide is a reactant in the equation for photosynthesis, this means that less carbon dioxide will be removed from the atmosphere by this process.

Jump to other topics

1Biology

1.1Cells, Tissues & Organs

1.2Reproduction & Variation

1.3Ecological Relationships & Classification

1.4Digestion & Nutrition

1.5Plants & Photosynthesis

1.6Biological Systems & Processes

2Chemistry

2.1Particles

2.2Chemical Reactions

2.3Atoms, Elements, Compounds

2.4The Periodic Table

2.5Materials & the Earth

2.6Reactivity

2.7Energetics

2.8Properties of Materials

3Physics

3.1Energy

3.2Forces & Motion

3.3Waves

3.4Electricity & Magnetism

3.5Matter

3.6Space Physics

4Thinking Scientifically

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